| Official Name: | Obljaj |
| Settlement Type: | Village |
| Pushpin Map: | Bosnia and Herzegovina |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: | Bosnia and Herzegovina |
| Subdivision Type1: | Entity |
| Subdivision Name1: | Federation of Bosnia and Herzegovina |
| Subdivision Type2: | Canton |
| Subdivision Name2: | Canton 10 |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Bosansko Grahovo |
| Area Total Km2: | 8.59 |
| Population As Of: | 2013 |
| Population Total: | 108 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 44.1783°N 16.3886°W |
Obljaj is a village in the municipality of Bosansko Grahovo in Canton 10 of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina.
Gavrilo Princip (who assassinated Archduke Franz Ferdinand of Austria), was born here in 1894 and lived here when he was young. During the Operation Summer '95 the house in which Princip was born was burned down by Croatian forces.[1]
According to the 2013 census, its population was 108.
| Number | Percentage | ||
|---|---|---|---|
| 55 | 50.9% | ||
| 52 | 48.1% | ||
| other/undeclared | 1 | 0.9% | |
| Total | 108 | 100% |